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2 years ago

6

Marianne wanted to know students' opinion on the new schedule at school. She survey's the first

1 answer:

stich3 [128]2 years ago

7 0

I think it is a Convience Sampling.

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Pls help! 5,6,7<br> 30 points

Deffense [45]

Jon=x-2 jor=x

2(x-2)=x+6

2x-4=x+6

combine like terms

x=10 Jordan's age

x-2 or 10-2 =8 Jonathan's age

13-10= 3 years apart

when aylon was 3 Karina was 6

2×3 =6

this was 7 years ago(answer)

10-3=7

13-6=7

48-36=12 years apart

when kd was 6 and md 18

3×6=18

30 years ago

36-6=30

48-18=30

3 0

3 years ago

help need to answer asap!!! a basketball team played 64 games. They won 20 more than they played; how many did they win?; how ma

melisa1 [442]

20 more than what they played or 20 more than what they lost?

7 0

2 years ago

Find the projection of u onto v<br> URGENT HELP

padilas [110]

Given:

Two vectors are:

$u=\left$

$v=\left$

To find:

The projection of u onto v.

Solution:

Magnitude of a vector $v=\left$ is:

$|v|=\sqrt{a^2+b^2}$

Dot product of two vector $v_1=\left$ and $v_2=\left$ is:

$v_1\cdot v_2=a_1a_2+b_1b_2$

Formula for projection of u onto v is:

$Proj_vu=\dfrac{u\cdot v}{|v|^2}v$

$Proj_vu=\dfrac{\left \cdot \left }{(\sqrt{2^2+17^2)^2}}\left$

$Proj_vu=\dfrac{0\cdot 2+6\cdot 17}{4+289}\left$

$Proj_vu=\dfrac{0+102}{293}\left$

On further simplification, we get

$Proj_vu=\dfrac{102}{293}\left$

$Proj_vu=\left$

$Proj_vu=\left$

Therefore, the projection of u onto v is $Proj_vu=\left$ .

3 0

2 years ago

Estimate the percent of each number. 47% of 77

Anettt [7]

ANSWER

36 .19

EXPLANATION

We want to estimate

$47\% \: of \: 77$

This is the same as

$\frac{47}{100} \times 77$

or

$\frac{47}{100} \times \frac{77}{1}$

We multiply the numerators to get,

$\frac{3619}{100}$

We convert to decimals to get

$36.19$

5 0

2 years ago

On a map of Arizona 2 inches represents 54 miles. The map distance from Yuma to Sentinel is 3 inches. What is the actual distanc

siniylev [52]

Answer: 81 miles

Step-by-step explanation:

if 2 inches = 54miles then 1 inch is 27 miles because 54/2=27

so 3 inches means 3(27)=81 miles from yuma to sentinel

6 0

2 years ago